Sidelink PSFCH Power Allocation Across Multiple Resource Pools

The patent segments the power control process into two distinct stages: (1) determining target PSFCHs from a first set based on a first transmission power (maximum UE power or per-object maximum power), and (2) performing sidelink transmission based on the N target PSFCHs and/or second transmission power. This segmentation resolves the contradiction by ensuring total power constraints are met at the first stage while allowing detailed power control at the second stage, preventing power exceedance across multiple resource pools while maintaining manageable complexity through structured processing.

The patent applies preliminary action by determining N target PSFCHs from the first set before actual sidelink transmission occurs. The terminal device pre-calculates which PSFCHs should be transmitted and at what power levels based on the first transmission power (maximum UE power or per-object maximum power) and second transmission power (path loss-based power control). This preliminary determination ensures total power constraints are satisfied before transmission, resolving the power control issue while managing complexity through advance planning rather than real-time adjustments.

The patent applies local quality by allowing different first objects to have different configurations regarding path loss-based power control. Specifically, the patent states that 'at least two first objects corresponding to the first set are configured with a same second parameter, or the at least two first objects corresponding to the first set are not configured with the second parameter'. This means each object can be individually configured with or without path loss-based power control (the second parameter), enabling accurate power control where needed while reducing configuration overhead where uniform power control suffices, thus resolving the contradiction between accuracy and complexity.